名词
中文翻译：主桅杆
同义词：
['mainmast', 'main boom']
例句：
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1.The captain stood at the main mast, surveying the sea.
船长站在主桅杆上，俯瞰着大海。
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2.The sailors were busy repairing the main mast.
水手们忙着修理主桅杆。
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3.The main mast was a symbol of strength and stability for the ship.
主桅杆是船的象征，代表着力量和稳定。